Sawtooth Goldenbush
Hazardia squarrosa
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Saw Toothed Goldenbush
Hazardia squarrosa var. grindelioides
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Common Sneezeweed
Helenium autumnale
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Bigelow's Sneezeweed
Helenium bigelovii
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Sneezeweed
Helenium puberulum
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Sunflower
Helianthus annuus
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Claremont Sunshine Sunflower
Helianthus annuus 'Claremont Sunshine'
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Serpentine Sunflower
Helianthus bolanderi
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California Sunflower
Helianthus californicus
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Slender Sunflower
Helianthus gracilentus
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Nuttall's Sunflower
Helianthus nuttallii
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Hayfield Tarweed
Hemizonia congesta
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Hayfield Tarweed
Hemizonia congesta ssp. lutescens
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Hayfield Tarweed
Hemizonia congesta ssp. luzulifolia
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Cow Parsnip
Heracleum maximum
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Toyon
Heteromeles arbutifolia
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Golden Berry Toyon
Heteromeles arbutifolia 'Davis Gold'
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Telegraph Weed
Heterotheca grandiflora
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False Goldenaster
Heterotheca sessiliflora
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Bolander's Goldenaster
Heterotheca sessiliflora ssp. bolanderi
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San Bruno Mountain Sessileflower Goldenaster
Heterotheca sessiliflora ssp. bolanderi 'San Bruno Mountain'
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Hairy False Goldenaster
Heterotheca villosa
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San Bruno Mountain Hairy Golden Aster
Heterotheca villosa 'San Bruno Mountain'
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Genevieve Alumroot
Heuchera 'Genevieve'
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Lillian's Pink Alumroot
Heuchera 'Lillian's Pink'
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Old La Rochette Alumroot
Heuchera 'Old La Rochette'
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Opal Alumroot
Heuchera 'Opal'
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Purple Palace Alumroot
Heuchera 'Purple Palace'
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Rachel Alumroot
Heuchera 'Rachel'
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Rosada Alumroot
Heuchera 'Rosada'
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Ruffles Alumroot
Heuchera 'Ruffles'
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Sally Forth Coral Bells
Heuchera 'Sally Forth'
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Santa Ana Cardinal Coral Bells
Heuchera 'Santa Ana Cardinal'
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Smokey Rose Alumroot
Heuchera 'Smokey Rose'
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Snowflake Alumroot
Heuchera 'Snowflake'
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Susanna Alumroot
Heuchera 'Susanna'
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Wendy Alumroot
Heuchera 'Wendy'
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Urnflower Alumroot
Heuchera caespitosa
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Bella Blanca Tufted Alumroot
Heuchera caespitosa 'Bella Blanca'
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Chartreuse Alumroot
Heuchera cylindrica 'Chartreuse'
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Red Bud Roundleaf Alumroot
Heuchera cylindrica 'Red Bud'
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Shaggy Haired Alumroot
Heuchera hirsutissima
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Santa Rosa Alumroot
Heuchera hirsutissima 'Santa Rosa'
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Crevice Alumroot
Heuchera micrantha
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Martha Roderick Alumroot
Heuchera micrantha 'Martha Roderick'
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Chiquita Mill Creek Alumroot
Heuchera parishii 'Chiquita'
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Yosemite Pink Alumroot
Heuchera rubescens 'Yosemite'
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Hairy-fruited Hibiscus
Hibiscus lasiocarpos
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Leather Root
Hoita macrostachya
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Ocean Spray
Holodiscus discolor
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Desert Ocean Spray
Holodiscus discolor var. glabrescens
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Small Flowered Soaproot
Hooveria parviflora
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Meadow Barley
Hordeum brachyantherum
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California Horkelia
Horkelia californica
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Cleveland's Horkelia
Horkelia clevelandii
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Wedge Leaf Horkelia
Horkelia cuneata
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Buck Lotus
Hosackia crassifolia
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Otay Mtn. Lotus
Hosackia crassifolia var. otayensis
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Seaside Bird's Foot Trefoil
Hosackia gracilis
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Tinker's Penny
Hypericum anagalloides